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authorChristian Brauner <brauner@kernel.org>2024-08-23 21:06:58 +0200
committerChristian Brauner <brauner@kernel.org>2024-08-29 15:20:25 +0200
commitc0390d541128e8820af8177a572d9d87ff68a3bb (patch)
tree432326e76850ccb9d807a86ecdd9951bc537a113 /mm
parenta55d1cbd1720679cfe9837bce250e397ec513989 (diff)
fs: pack struct file
Now that we shrunk struct file to 192 bytes aka 3 cachelines reorder struct file to not leave any holes or have members cross cachelines. Add a short comment to each of the fields and mark the cachelines. It's possible that we may have to tweak this based on profiling in the future. So far I had Jens test this comparing io_uring with non-fixed and fixed files and it improved performance. The layout is a combination of Jens' and my changes. Link: https: //lore.kernel.org/r/20240824-peinigen-hocken-7384b977c643@brauner Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'mm')
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