Message ID | 20240410150313.2820364-3-yi.zhang@huaweicloud.com |
---|---|
State | New |
Headers | show
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Wed, 10 Apr 2024 23:11:49 +0800 (CST) From: Zhang Yi <yi.zhang@huaweicloud.com> To: linux-ext4@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz, ritesh.list@gmail.com, hch@infradead.org, djwong@kernel.org, david@fromorbit.com, willy@infradead.org, zokeefe@google.com, yi.zhang@huawei.com, yi.zhang@huaweicloud.com, chengzhihao1@huawei.com, yukuai3@huawei.com, wangkefeng.wang@huawei.com Subject: [RFC PATCH v4 31/34] filemap: support disable large folios on active inode Date: Wed, 10 Apr 2024 23:03:10 +0800 Message-Id: <20240410150313.2820364-3-yi.zhang@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240410142948.2817554-1-yi.zhang@huaweicloud.com> References: <20240410142948.2817554-1-yi.zhang@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: <linux-ext4.vger.kernel.org> List-Subscribe: <mailto:linux-ext4+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-ext4+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: cCh0CgAn9g4orBZmFSt+Jg--.51485S6 X-Coremail-Antispam: 1UD129KBjvJXoW7CFW7KF13Ar18tF1DXFy3XFb_yoW8uryfpF W7uw4rGrWUWFsYvr93AFy2yF4fWa4kWayUAF9xGwn8AasxKF42gFWvk3W3X3yUJr4rAa1f ZF4Uury3GFyjg3DanT9S1TB71UUUUjJqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUljb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUXw A2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV W8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6rxl6s0DM2kKe7AKxVWUAVWUtwAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0V AKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUAVWUtwAv7VC2z280aVAFwI0_Gr0_Cr1l Ox8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JM4x0Y40E4IxF1VCIxcxG6Fyj6r 4UJwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc7CjxVAa w2AFwI0_JF0_Jw1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l4IxYO2 xFxVAFwI0_JF0_Jw1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWU WwC2zVAF1VAY17CE14v26r4a6rW5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_JF I_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAIw20EY4v20xvaj40_ Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr1j6F4UJwCI42IY6I8E87Iv6xkF7I0E14v26rxl6s 0DYxBIdaVFxhVjvjDU0xZFpf9x0zRjNtcUUUUU= X-CM-SenderInfo: d1lo6xhdqjqx5xdzvxpfor3voofrz/ |
Series |
ext4: use iomap for regular file's buffered IO path and enable large folio
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expand
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diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 2df35e65557d..7e963bc64158 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -360,6 +360,20 @@ static inline void mapping_set_large_folios(struct address_space *mapping) __set_bit(AS_LARGE_FOLIO_SUPPORT, &mapping->flags); } +/** + * mapping_clear_large_folios() - The file disable supports large folios. + * @mapping: The file. + * + * The filesystem have to make sure the file is in atomic context and all + * cached folios have been cleared under mapping->invalidate_lock before + * calling this function. + */ +static inline void mapping_clear_large_folios(struct address_space *mapping) +{ + WARN_ON_ONCE(!rwsem_is_locked(&mapping->invalidate_lock)); + __clear_bit(AS_LARGE_FOLIO_SUPPORT, &mapping->flags); +} + /* * Large folio support currently depends on THP. These dependencies are * being worked on but are not yet fixed. diff --git a/mm/readahead.c b/mm/readahead.c index 130c0e7df99f..481fe355485c 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -505,6 +505,12 @@ void page_cache_ra_order(struct readahead_control *ractl, } filemap_invalidate_lock_shared(mapping); + + if (unlikely(!mapping_large_folio_support(mapping))) { + filemap_invalidate_unlock_shared(mapping); + goto fallback; + } + while (index <= limit) { unsigned int order = new_order;